Cover-lock



G. A. BURNHAM.

COVER LOCK.

APPLICATION FILED MAR. 31,1919- 1,398,499. Patentefl Nov. 29, 1921.

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Application filedMarch 31, 1919. Serial No. 286,352. 1

To all whom it mag concern This invention relates to a lock for securingthe removable cover to the body of a refiled January 4, 1918.

ceptacle and is an improvement on the lock shown in apphcation SerialNo. 210,394,

The object of this invention is to provide a device for the purposedescribed which is easy to operate; cheap in construction and whichsecurely holds or looks the cover in position on the body of thereceptacle against any jarringof the receptacle.

The means by which I'attain the object above set forth includes a' flatlocl ing-mem-' her which is pivotally secured to the body of thereceptacle and frictionally held in any rotated position by aspring-member. The cover is provided with a circular opening in whichthe locking-member is closely received in the closed position of thecover to thereby hold the cover in such position. The cover is providedwith a slot extended from the bottom edge to the opening therein which,when the flat locking-member is turned into one position permits thecover to be moved into closed position and the locking-member to therebyenter the opening. The lockingmember is thereupon rotated in saidopeningto such a position'that its edges engage the. walls of the opening andremoval of the cover is thereby prevented.

Figure 1 is a front view of a receptacle embodying my invention.

Fig. 2 is a detail of the cover and body of the receptacle with thecover in partially closed position and with the locking-member rotatedinto a position to enter the opening in the cover. i

Fig. 3 is a sectional detail along lines 3S of Fig. 2. r

Fig. 1 is a detail of the cover in closed position on the body of thereceptacle and with the locking-member received in the opening in thecover and with the locking-member rotated into locking position.

Fig. 5 is a sectional detail along lines 55' of Fig. 4.

Fig. 6 is a plan view of the friction. washer for the locking-member.

As here shown the receptacle'to which my inventlon is applied comprisesthe body-pen tlon 10 and the cover 11. The cover is formed with adown-turnededge-portion 12 adapted to fit closely over the body-portion10 in the closed position oftheicoven' The locking-member comprises aflat strip having a locking-portion 141 and the integral reduced orbearing-portion 15.. An opening 16 is formed through the wall of thebodyportion near the top thereof and within-that portion covered by thedownturned edgeportion 12 of the cover in the closed positionSpecification of Letters Patent. Patented N 29" 1921, 1

thereof and the reduced or hearing portion i 15 of the locking-member isrotatable there- .in. Said bearing-portion 15 is of such a length as toextend beyond the inner face of I the wall of the body-portion l0 and aspring member comprising the concave spring-disk 17 having a slottedperiphery thereby to provide a plurality of spring-fingers 17 is ar- 7ranged thereover and secured tn'ereto as by the upsetting of the end ofthe bearing-men ber. The tension-member is for the purpose of drawingthe shoulder formed at the junction of the locking and bearing portionsof the locking-memberinto firm frictional on gagement with the bodyportion 10 thereby v to frictionally retain said locking-member in anyrotated position against any unintentional displacement therefrom, yetpermit ting it to be rotated, and also firmly to hold itin extendedposition from the body-portion. The large diameter ofthe friction memberwith its bearing with the wall of he receptacle at its peripherymaterially assists in providing this result. It is obvious, however,that any suitable means to accomplish this result may be employed.

The down-turned edge-portion 12 of the cover, is formed with asubstantially circular opening 18 therethrough which, in

the closed position of the cover, is adapted to be substantiallyconcentric with the pivotal axis of the locking-member. Said openconforms to the edges of the locking-portion of'the flat locking-member,whereby,- when said member is rotated to a horizontal position shownin.Figs. 4L and 5, or to a position inclined away from the vertical, thewalls of the opening will engage the edges of the locking-member andfurther movement of the cover toward an open position will be prevented.

ing 18 is of such a diameter that it closely ing in the cover-portionand the lockingcover-portionand extended from the lower 1 edge "thereofto'said opening 18 therein, to permit the entrance of the locking-memberinto said opening to lock the receptacle. Said slot is of'a widthslightly-exceeding the thickness of the flat locking-member whereby,when said member is arranged as inFig. 2 with the flat member in a.vertical plane, or in the plane of the closing move ment of the cover,the down-turned edge will move over the locking-member and assume aposition in which the locking-member is'entirely, disposed in theopening 18 therein, as shown by the dotted lines in Fig. 4. The" lockingportion o'f said lockingmember in the closed condition of the receptacleis such that it extends beyond-the receptacle a. suitable distance to begrasped by the fingers... j Y

With the c0ver;in closed position the locking-member is'adapted to berotated from the vertical position into a position inclined trom'thevertical, as in 'Fig. 4,

inwhi'chposition the edges of the lockingmember engage'tne walls of theopening and prevent removal of the cover. The lock ing-member isfrictionally retained in any adjusted position; by the springmember andconsequently will hold the cover closed until it is rotated intoadjustinent with the slot 19, whereupon the cover may be moved away fromthe body of the receptacle;

It is to be noted that, by the provision of the substantiallycircularlocking openmember which is closely received therein,

against movement in either direction.

I claim- A receptacle having a body-portion and 7a cover having aside-wall depending down over a side-wall ,of the body-portion, thecover side-wall having a circular lock-meniber receiving aperturetherethrough and a slot having a width less than the diameter of saidaperture extended from the lower edge of the side-wall to saidaperture-arranged to admit a lock-member within said aperture,theside-wall of said body-portion having'a smaller aperture alined with theaperture inrsaid cover, and a lock-member for said cover andbody-portion comprising a flat strip having a width approximately equalto the diameter of the circular aperture and a thickness less than thewidth of said slot and extended beyond the side-wall of the cover, saidstrip having a reduced portion rotatably received in theaperture in theside wallof the body-portion and extended inwardly beyond saidside-wall,

and a spring-plate received on said extended e L reduced portionarrangedtopress said strip 4 against the sidewall, said extended reducedportion formed with an enlarged inner end porti0n arranged to retainsaid spring-platein place. 7 In testimony whereof, I have signed my nameto this specification, in the presence of two subscribing witnesses;

GEORGE A. BURNHAM,

Witnesses V T. T. GREENWOOD, H. B. DAVIS.

